| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a preparation having a good antioxidant property, a method for preparing the same and a using method for the same. <P>SOLUTION: This preparation contains at least one compound expressed by formula I [wherein, R<SP>1</SP>to R<SP>10</SP>are each the same or different, and selected from H, OR<SP>11</SP>, a straight or branched chain 1-20C alkyl, a straight or branched chain 3-20C alkenyl, a straight or branched chain 1-20C hydroxyalkyl and/or a 3-10C cycloalkyl and/or a 3-12C cycloalkenyl (wherein, all of the OR<SP>11</SP>s are independent from each other and are each OH, a 1-20C alkoxy, a 3-20C alkenyloxy, a straight or branched chain 1-20C hydroxyalkoxy and/or a 3-10C cycloalkoxy and/or a 3-10C cycloalkoxy and/or 3-12C cycloalkenyloxy and/or a mono and/or an oligoglycosyl group)]. <P>COPYRIGHT: (C)2004,JPO |
